Improved bed-bottom



lnited 1at1et-i`A SAMUEL DUNLAP, OF ROME, GEORGIA..

Letters .Patent No. 90,999, dated June 81869.

IMPROVE!) BED-BOTTOM.

1 The Schedule refen'ed to in these Letters Patent and making part ofthe same.

\ To all whm it may concern:

Be it known that I, SAMUEL DUNLAP, of Rome, in the county of Floyd, yandState of Georgia, have invented a newand useful Improvement in Spring-Beds; and I do hereby declare that the following is a full, clear, andexact description thereof', which will enable others skilled in the artto make and use the same, reference being had tothe accompanying draw--ings forming part of this specification.

This invention relates to improvements inspringbed bottoms, designed toprovide a simple, cheap, and eifective ariangement of the same. v

` It consists in arrangement of vulcanized India-rubber springs,'upontension-rollers at -each end, extending across the space between theends, the rollers being provided with ratchets and pawls, for tighteningand holding the springs. Y

Figure l represents a plan View of my improvement.;

Figure 2 represents a side elevation; and

Figure 3. represents detail views. v

Similar lletters of reference indicate corresponding parts. v

I propose to employ Indiaerubber belts or straps a, to be extendedpxsross the space betweenthe frame, either transversely orlongitudinally, preferably in the latter direction, and secured uponrollers e b. ,I proy used.

vide bearing for the said rollers in thel plates y, of metal or othersubstance, so arranged as to be readily attached to or removed from the`bedstead after it isput together.

Each roller is provided with a ratchet-wheel and pawl at one end, topermit the straps to be tightened by turning the rollers, and to holdthem under any preferred degree of tension.

For turning the, rollers, holes may be made in them for the applicationof a lever, or other means may-be The journals of the rollers may beplaced in the side-rails of the bedsteads, instead of the bearings g, ifpreferred.

This arrangement,4 provides a simple and cheap spring-bed, which may bereadily adjusted to any desired degree of elasticity.

Having' thus described my invention,

I claim as new, and desire to secure by Letters Patent- The combination,With a bedstead, of the India-rnb ber straps a, rollers, ratchets andpawls, and either' the bearing-plates or not, all substantially asspecified.

SAMUEL DUNLAP. Witnesses:

H. D. OATHRAN, E. R. SMITH.

